Half to feank shay



H. J DYKES. AIR GOOL ING AND'PURIFYING APPARATUS. No. 245,614.

(NO Model.)

Patented Aug. 16, 1881.,

5 ll llllllllllllill "NITED STATES PATENT OFFICE.

HUGH J. DYKES, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR OF ONE- HALF TO FRANK SHAY, OF SAME PLACE.

' AIR COOLING AND PURIFYING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 245,614, dated August 16, 1881.

Application filed May 6, 1881. (No model.)

To all whom tt may concern:

Be it known that I, HUGH J. DYKES, of the city and county of San Francisco, State of California, have invented an Air Cooling and Purifying Apparatus; and I hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to certain improvements in cooling and purifying air to be used in sick-rooms or sleeping-rooms; and it consists in the employment of a rotating cylinder mounted upon suitable supporting-rollers and having its interior subdivided, so that one compartment may be filled with a refrigerating compound, while air-may be driven through the other part so as to pass over the cold surfaces, and thus have its heat abstracted. It may thus pass over or through lime, limewater, or other material, by which it will be freed from its carbonic acid and other impurities, so that it may be returned into the room to be used over again. The air is caused to circulate by means of a rotary fan-blower or other air forcin g apparatus, which is driven by means of a clock-work or other mechanism, and draws the air from the room, passes it through the cylinder, and returns it to the room again, as will be more fully explained by reference to the accompanying drawings, in which- Figure 1 is a side elevation of my apparatus. Fig. 2 is a longitudinal section of the cylinder. Fig. 3 is a transverse section of the cylinder.

A is a clock-work or other mechanism by which a continuous power may be produced.

B is afan-blower, which is driven by the mechanism described. This fan is constructed to take air from the body of the room within which the apparatus is used and to force it into a cylinder or chamber, 0, within which it is to be treated. This cylinder is preferably mounted upon supporting rollers D, upon which it may be turned like a roasting-furnace, or in other manner. The interiorof this cylinder is divided into two compartments, secured together by any proper means, one surrounding the other. The outer compartment,

E, is partially filled with any suitable refrigerating compound, and the rotation of the cyl- 5o inder upon its axis serves to agitate the compound and keep it working properly.

The pipe F from the blower delivers the air into the end of the spiral coil through a stuffing-box, a, at the center of the cylinder, and 5 5 from this point it may be conveyed around within the cylinder in a spiral tube which passes through the outer compartment, where the refrigerating compound is. At the opposite end it flows into the central compartment, and after passing through this itis discharged through a pipe into a vessel, Gr, containing lime, lime-water, or other substance which will purify it sut'ficiently, after which it is allowed to flow out into the room to be used again.

- This apparatus is intended to be used in sleeping-apartments or sick-rooms, and by its use the air within the room may be cooled and purified over and over without change. It will be extremely useful in hot climates, as by its use the clock-work may be set in motion, and the doors and windows being closed, the whole of the air within the room will be reduced to a temperature so low that the occupant can sleep with comfort. It will also be purified, so that it may be used over and over without serious detriment. The fan-blower and the cylinder are driven by belt or other connection from the clock-work, and are intended to run nearly or quite through the night, so that when set in motion the air will be reduced in temperature, and, as it is isolated from the exterior air, will remain cool during the night.

Having thus described my invention, what 1 claim as new, and desire to secure by Letters Patent, is-

1. An air-cooling apparatus consisting of the rotating cylinder 0, having the compartment E to hold a refrigerating compound, and the coiled air-tube F, passing through it and connecting with the interior compartment, 0, in combination with the air-blast apparatus B and the driving mechanism A, substantially as herein described.

2. An air cooling and purifying apparatus consisting of the rotating cylinder 0, with the compartment E to receive a refrigerating compound, the coiled air-tube I passing through the chamber and opening into the interior chamber, 0, and thence to the purifying-chamber G, in combination with the air-blast apparatus B and the driving mechanism, substantially as herein described.

In witness whereof I have hereunto set my hand.

H. J. DYKES.

\Vitnesses:

FRANK A. BROOKS, S. H. NoURsE. 

